The 49-year-old victim tried to break up an argument between the suspect and someone else. The suspect then pulled out a gun and fired it once, striking the victim in the right leg, according to police.

The suspect, described as a woman in her mid 30s, then fled in a green vehicle. She had not been found as of this morning, police said.

The victim was taken to San Francisco General Hospital to be treated for her injuries, which are not considered life-threatening, according to police.

Anyone with information about the case is encouraged to call the Police Department’s anonymous tip line at (415) 575-4444 or send a tip by text message to TIP411.